freebsd-dev/lib/libc/locale/lnumeric.c

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/*
* Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
* All rights reserved.
*
* Copyright (c) 2011 The FreeBSD Foundation
* All rights reserved.
* Portions of this software were developed by David Chisnall
* under sponsorship from the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <limits.h>
#include "ldpart.h"
#include "lnumeric.h"
extern const char *__fix_locale_grouping_str(const char *);
#define LCNUMERIC_SIZE (sizeof(struct lc_numeric_T) / sizeof(char *))
static char numempty[] = { CHAR_MAX, '\0' };
static const struct lc_numeric_T _C_numeric_locale = {
".", /* decimal_point */
"", /* thousands_sep */
numempty /* grouping */
};
static void
destruct_numeric(void *v)
{
struct xlocale_numeric *l = v;
if (l->buffer)
free(l->buffer);
free(l);
}
struct xlocale_numeric __xlocale_global_numeric;
static int
numeric_load_locale(struct xlocale_numeric *loc, int *using_locale, int *changed,
const char *name)
{
int ret;
struct lc_numeric_T *l = &loc->locale;
ret = __part_load_locale(name, using_locale,
&loc->buffer, "LC_NUMERIC",
LCNUMERIC_SIZE, LCNUMERIC_SIZE,
(const char**)l);
if (ret != _LDP_ERROR)
*changed= 1;
if (ret == _LDP_LOADED) {
/* Can't be empty according to C99 */
if (*l->decimal_point == '\0')
l->decimal_point =
_C_numeric_locale.decimal_point;
l->grouping =
__fix_locale_grouping_str(l->grouping);
}
return (ret);
}
int
__numeric_load_locale(const char *name)
{
return numeric_load_locale(&__xlocale_global_numeric,
&__xlocale_global_locale.using_numeric_locale,
&__xlocale_global_locale.numeric_locale_changed, name);
}
void *
__numeric_load(const char *name, locale_t l)
{
struct xlocale_numeric *new = calloc(sizeof(struct xlocale_numeric), 1);
new->header.header.destructor = destruct_numeric;
if (numeric_load_locale(new, &l->using_numeric_locale,
&l->numeric_locale_changed, name) == _LDP_ERROR)
{
xlocale_release(new);
return NULL;
}
return new;
}
struct lc_numeric_T *
__get_current_numeric_locale(locale_t loc)
{
return (loc->using_numeric_locale
? &((struct xlocale_numeric *)loc->components[XLC_NUMERIC])->locale
: (struct lc_numeric_T *)&_C_numeric_locale);
}
#ifdef LOCALE_DEBUG
void
numericdebug(void) {
printf( "decimal_point = %s\n"
"thousands_sep = %s\n"
"grouping = %s\n",
_numeric_locale.decimal_point,
_numeric_locale.thousands_sep,
_numeric_locale.grouping
);
}
#endif /* LOCALE_DEBUG */